创建一个新的基 CDialogEx 派生 class
Creating a new base CDialogEx derived class
我有很多 CDialogEx
派生的 classes 在 OnInitDialog
:
中做这样的事情
CMeetingScheduleAssistantApp::InitialiseResizeIcon(m_bmpResize, m_lblResize, this);
CMeetingScheduleAssistantApp::RestoreWindowPosition(_T("PublisherDB"), this, true);
然后,我将以下内容添加到每个派生对话框中 class:
int CPublishersDatabaseDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CPublishersDatabaseDlg::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CPublishersDatabaseDlg::OnClose()
{
CMeetingScheduleAssistantApp::SaveWindowPosition(_T("PublisherDB"), this);
CDialogEx::OnClose();
}
每个对话框唯一不同的是用于保存 window 位置的短语。
我想要一个可以从中继承的基础 CDialogEx
class 来执行上述操作。我查看了 SO,似乎有些问题并创建了一个 CDialog
class 并继承了另一个 CDialog
class。但是我要创建的这个 class 更通用。有效地用作基础而不是 CDialogEx
.
这能做到吗?我是不是太复杂了?
问题
为什么我尝试创建一个新的 class,派生自 CDialogEx
:
我不知道是不是因为它需要 对话 ID,如 here.
所述
Classes such as CDialog
, CFormView
, or CPropertyPage
, which require a dialog ID.
所以我想不出创建基础 CDialogEx class 以用于我所有其他对话框 classes.
的正确方法
更新
我创建了这段代码,它告诉我 CResizingDialog
不是 class 或命名空间:
#include "ResizingDialog.h"
#include "resource.h"
#include "stdafx.h"
IMPLEMENT_DYNAMIC(CResizingDialog, CDialogEx)
CResizingDialog::CResizingDialog(const CString& strWindowID, UINT nIDTemplate, CWnd* pParent = nullptr)
: m_strWindowID(strWindowID), CDialogEx(nIDTemplate, pParent)
{
}
CResizingDialog::~CResizingDialog()
{
}
void CResizingDialog::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CResizingDialog, CDialogEx)
ON_WM_CREATE()
ON_WM_GETMINMAXINFO()
ON_WM_CLOSE()
END_MESSAGE_MAP()
int CResizingDialog::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CResizingDialog::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CResizingDialog::OnClose()
{
SaveWindowPosition(m_strWindowID, this);
CDialogEx::OnClose();
}
根据鼓励我尝试手动创建 class 的评论,我成功了:
#include "stdafx.h"
#include "resource.h"
#include "ResizingDialog.h"
IMPLEMENT_DYNAMIC(CResizingDialog, CDialogEx)
CResizingDialog::CResizingDialog(const CString& strWindowID, UINT nIDTemplate, CWnd* pParent /* nullptr */, bool bOnlyStorePosition /* false */)
: m_strWindowID(strWindowID),
m_bOnlyStorePosition(bOnlyStorePosition), CDialogEx(nIDTemplate, pParent)
{
}
CResizingDialog::~CResizingDialog()
{
}
void CResizingDialog::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CResizingDialog, CDialogEx)
ON_WM_CREATE()
ON_WM_GETMINMAXINFO()
ON_WM_CLOSE()
END_MESSAGE_MAP()
int CResizingDialog::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CResizingDialog::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CResizingDialog::OnClose()
{
SaveWindowPosition(m_strWindowID, this);
CDialogEx::OnClose();
}
void CResizingDialog::OnOK()
{
SaveWindowPosition();
CDialogEx::OnOK();
}
BOOL CResizingDialog::OnInitDialog()
{
CDialogEx::OnInitDialog();
if(!m_bOnlyStorePosition)
InitialiseResizeIcon(m_bmpResize, m_lblResize, this);
RestoreWindowPosition(m_strWindowID, this, true);
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
我决定将应用 class 中的方法复制到这个新对话框 class 中。最终它们可以从应用程序中删除 class。我还必须做的唯一一件事是 #include
我的资源文件,因为图像需要知道资源 ID 的值。
这是ResizingDialog.h
header:
#pragma once
#include <afxwin.h>
class CResizingDialog : public CDialogEx
{
DECLARE_DYNAMIC(CResizingDialog)
public:
CResizingDialog(const CString& phrase, UINT nIDTemplate, CWnd* pParent = nullptr, bool bOnlyStorePosition = false); // Constructor
virtual ~CResizingDialog(); // Destructor
protected:
void OnOK() override;
virtual void DoDataExchange(CDataExchange* pDX) override; // DDX/DDV support
void SaveWindowPosition(void) { SaveWindowPosition(m_strWindowID, this); }
public:
BOOL OnInitDialog() override;
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnGetMinMaxInfo(MINMAXINFO* lpMMI);
afx_msg void OnClose();
DECLARE_MESSAGE_MAP()
private:
CBitmap m_bmpResize;
CStatic m_lblResize;
CRect m_rcInit;
CString m_strWindowID;
bool m_bOnlyStorePosition;
void RestoreWindowPosition(CString strWindow, CWnd* pWindow, bool bOverrideState = false);
void SaveWindowPosition(CString strWindow, CWnd* pWindow);
void InitialiseResizeIcon(CBitmap& rBmpResize, CStatic& rLblResize, CWnd* pDialog);
};
此处未显示实际函数 SaveWindowPosition
、RestoreWindowPosition
和 InitialiseResizeIcon
,因为它们与问题没有直接关系。
我有很多 CDialogEx
派生的 classes 在 OnInitDialog
:
CMeetingScheduleAssistantApp::InitialiseResizeIcon(m_bmpResize, m_lblResize, this);
CMeetingScheduleAssistantApp::RestoreWindowPosition(_T("PublisherDB"), this, true);
然后,我将以下内容添加到每个派生对话框中 class:
int CPublishersDatabaseDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CPublishersDatabaseDlg::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CPublishersDatabaseDlg::OnClose()
{
CMeetingScheduleAssistantApp::SaveWindowPosition(_T("PublisherDB"), this);
CDialogEx::OnClose();
}
每个对话框唯一不同的是用于保存 window 位置的短语。
我想要一个可以从中继承的基础 CDialogEx
class 来执行上述操作。我查看了 SO,似乎有些问题并创建了一个 CDialog
class 并继承了另一个 CDialog
class。但是我要创建的这个 class 更通用。有效地用作基础而不是 CDialogEx
.
这能做到吗?我是不是太复杂了?
问题
为什么我尝试创建一个新的 class,派生自 CDialogEx
:
我不知道是不是因为它需要 对话 ID,如 here.
所述Classes such as
CDialog
,CFormView
, orCPropertyPage
, which require a dialog ID.
所以我想不出创建基础 CDialogEx class 以用于我所有其他对话框 classes.
的正确方法更新
我创建了这段代码,它告诉我 CResizingDialog
不是 class 或命名空间:
#include "ResizingDialog.h"
#include "resource.h"
#include "stdafx.h"
IMPLEMENT_DYNAMIC(CResizingDialog, CDialogEx)
CResizingDialog::CResizingDialog(const CString& strWindowID, UINT nIDTemplate, CWnd* pParent = nullptr)
: m_strWindowID(strWindowID), CDialogEx(nIDTemplate, pParent)
{
}
CResizingDialog::~CResizingDialog()
{
}
void CResizingDialog::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CResizingDialog, CDialogEx)
ON_WM_CREATE()
ON_WM_GETMINMAXINFO()
ON_WM_CLOSE()
END_MESSAGE_MAP()
int CResizingDialog::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CResizingDialog::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CResizingDialog::OnClose()
{
SaveWindowPosition(m_strWindowID, this);
CDialogEx::OnClose();
}
根据鼓励我尝试手动创建 class 的评论,我成功了:
#include "stdafx.h"
#include "resource.h"
#include "ResizingDialog.h"
IMPLEMENT_DYNAMIC(CResizingDialog, CDialogEx)
CResizingDialog::CResizingDialog(const CString& strWindowID, UINT nIDTemplate, CWnd* pParent /* nullptr */, bool bOnlyStorePosition /* false */)
: m_strWindowID(strWindowID),
m_bOnlyStorePosition(bOnlyStorePosition), CDialogEx(nIDTemplate, pParent)
{
}
CResizingDialog::~CResizingDialog()
{
}
void CResizingDialog::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CResizingDialog, CDialogEx)
ON_WM_CREATE()
ON_WM_GETMINMAXINFO()
ON_WM_CLOSE()
END_MESSAGE_MAP()
int CResizingDialog::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialogEx::OnCreate(lpCreateStruct) == -1)
return -1;
// Save Initial window size to m_rcInit
GetWindowRect(&m_rcInit);
return 0;
}
void CResizingDialog::OnGetMinMaxInfo(MINMAXINFO* lpMMI)
{
// Set the minimum window size to initial size.
lpMMI->ptMinTrackSize.x = m_rcInit.Width();
lpMMI->ptMinTrackSize.y = m_rcInit.Height();
CDialogEx::OnGetMinMaxInfo(lpMMI);
}
void CResizingDialog::OnClose()
{
SaveWindowPosition(m_strWindowID, this);
CDialogEx::OnClose();
}
void CResizingDialog::OnOK()
{
SaveWindowPosition();
CDialogEx::OnOK();
}
BOOL CResizingDialog::OnInitDialog()
{
CDialogEx::OnInitDialog();
if(!m_bOnlyStorePosition)
InitialiseResizeIcon(m_bmpResize, m_lblResize, this);
RestoreWindowPosition(m_strWindowID, this, true);
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
我决定将应用 class 中的方法复制到这个新对话框 class 中。最终它们可以从应用程序中删除 class。我还必须做的唯一一件事是 #include
我的资源文件,因为图像需要知道资源 ID 的值。
这是ResizingDialog.h
header:
#pragma once
#include <afxwin.h>
class CResizingDialog : public CDialogEx
{
DECLARE_DYNAMIC(CResizingDialog)
public:
CResizingDialog(const CString& phrase, UINT nIDTemplate, CWnd* pParent = nullptr, bool bOnlyStorePosition = false); // Constructor
virtual ~CResizingDialog(); // Destructor
protected:
void OnOK() override;
virtual void DoDataExchange(CDataExchange* pDX) override; // DDX/DDV support
void SaveWindowPosition(void) { SaveWindowPosition(m_strWindowID, this); }
public:
BOOL OnInitDialog() override;
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnGetMinMaxInfo(MINMAXINFO* lpMMI);
afx_msg void OnClose();
DECLARE_MESSAGE_MAP()
private:
CBitmap m_bmpResize;
CStatic m_lblResize;
CRect m_rcInit;
CString m_strWindowID;
bool m_bOnlyStorePosition;
void RestoreWindowPosition(CString strWindow, CWnd* pWindow, bool bOverrideState = false);
void SaveWindowPosition(CString strWindow, CWnd* pWindow);
void InitialiseResizeIcon(CBitmap& rBmpResize, CStatic& rLblResize, CWnd* pDialog);
};
此处未显示实际函数 SaveWindowPosition
、RestoreWindowPosition
和 InitialiseResizeIcon
,因为它们与问题没有直接关系。